27263905825 has 12 divisors (see below), whose sum is σ = 36407800828. Its totient is φ = 20133345600.

The previous prime is 27263905813. The next prime is 27263905829. The reversal of 27263905825 is 52850936272.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 8650488064 + 18613417761 = 93008^2 + 136431^2 .

It is not a de Polignac number, because 27263905825 - 2⁵ = 27263905793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27263905829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41944146 + ... + 41944795.

Almost surely, 2^27263905825 is an apocalyptic number.

27263905825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27263905825 is a deficient number, since it is larger than the sum of its proper divisors (9143895003).

27263905825 is a wasteful number, since it uses less digits than its factorization.

27263905825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83888964 (or 83888959 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 27263905825 in words is "twenty-seven billion, two hundred sixty-three million, nine hundred five thousand, eight hundred twenty-five".